What does PackageMaker's “Include root in package” option actually do?

Question

I\'m making an installer for an OS X application, but have trouble understanding PackageMaker\'s UI. My version of PackageMaker is 3.0.4, running along Lion and Xcode 4.1.

Answer 1

Or... (the same answer as above but phrased differently which might make it clearer):

"Include root in package" (IRIP) only applies to directories or things that are directories underneath i.e. application packages and bundles.

When you install a simple file, the IRIP flag is set but greyed out: you have no choice, the named file will be installed at the destination.

When you install a directory, the IRIP flag is not greyed out but editable: - when set: the directory plus its contents are installed at the destination - when clear: only the directory contents are installed at the destination